pygambit.gambit.Game.has_perfect_recall#
- Game.has_perfect_recall(player: str) bool#
Returns whether player has perfect recall.
A player has perfect recall if, at each of the player’s information sets, every member node is reached by the same sequence of the player’s own prior actions; that is, the player never forgets an action they took previously, nor information they previously knew. A game has perfect recall if and only if every player does.
By convention, in games with a strategic representation every player has perfect recall as such games are treated as simultaneous-move games.
Added in version 17.0.0.
- Parameters:
player (str) – The label of the player.
- Raises:
KeyError – If no player in the game has label player.
ValueError – If player is an empty string or all whitespace.
See also